 |
| |||
| fréquence de récurrence; fréquence des impulsions | |||
| fréquence de modulation | |||
| частота модуляции: 15 phrases in 9 subjects |
| Astronautics | 2 |
| Automated equipment | 4 |
| Aviation | 1 |
| Communications | 1 |
| Electronics | 1 |
| Quantum electronics | 1 |
| Radio | 1 |
| Surveying | 2 |
| Technology | 2 |